Boiler water-level recorder



(No Model.) 2 Sheets- Sheet 1.

W. M. LEWIS. BOILER WATER LEVEL RECORDER. No. 483,722. Patented Oct. 4, 1892.I

(No Model.) 2 Sheets-Sheet 2.

W. M. LEWIS'. BOILER WATER LEVEL RECORDER. N0.'483,722. Patented Oct. 4, 1892.

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UNITED STATES PATENT OFFICE.

VILLIAM MORGAN LEVIS, OF NE\V CASTLE, COLORADO.

BOILER WATER-LEVEL RECORDER.

SPECIFICATION forming part of Letters Patent N0. 483,722, dated October 4, 1892.

Application filed September 3, 1891. Serial No. 404,658. (No model.)

To all whom t may concern..-

Be it known that I, WILLIAM MORGAN LEWIS, of New Castle, in the county of Garfield and State of Colorado, have invented a new and Improved Boiler Vater-Level Recorder, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved boiler-recorder which is simple and durable in construction, very effective in operation, and arranged to automatically record the pressure cf steam in the boiler and the water-levels during the time the boiler is in use.

The device for recording the pressure of the steam in the boiler shown in the drawings, and hereinafter described, will form the subjectmatter of a separate application,

.which will be a division of this one.

The invention consists of certain parts and details and combinations 0f the same, as will be hereinafter described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, 'forming a part of this specification, in which the same letters of referenceindicate the same or corresponding parts in all the figures.

Figure lis a sectional side elevation of the improvement. Fig. 2 is asectional plan view of the same on lines 2 2 of Fig. l, and Fig. 3 is a sectional side elevation of part of the im provement on the line 3 3 of Fig. 2.

My improved boiler-recorder is provided with a closed vessel A, connected near its upper end by a pipe B with the steam-compartment of the boiler and at it lower end by a pipe C with the water-compartment of the boiler. The vessel A is so arranged relative to the boiler that the water-level in the vessel A corresponds with the level of the water in the boiler, the vessel preferably extending throughout the height of the boiler and forming part of the same or placed a suitable distance therefrom at a convenient place.

On the top of the vessel A is arranged a cylinder D,`extending upwardly, and in which is tit-ted to slide a piston E, provided with a piston-rod F, extending through a suitable stuffing-box in the top of the cylinder D. The outer yend of the piston-rod F extends into a casingG, supported on asuitable platform A', held onja framework arranged on top of the vessel A. The extreme upper end of the piston-rod F is formed with an enlargement F', connected with one end of a spring H, coiled in the lower part of the casing G, said spring being attached to the bottom of the casing. From the front part of the enlargement F' of the piston-rod F extends a pointer F2, indicating on the graduation G' liXed on the casing G. From the rear part of the enlargement F extends transversely a vspring-pressed pencil I, (see Fig. 2,) passing through a vertical slot J', formed in a transparent cover .l of a clockwork K of any approved construction.

The hour-shaft K' of the clockwork K carries a dial L, arranged to make one full rotation either during twelve or twenty-four hours, the said dial being correspondingly divided into twelve or twenty-four equal sector parts L', and with a double graduation L2 and L3, distinguished from one another by Roman and Arabic numerals and both indicating hours of the sector parts L', as hereinafter more fully described. lVhen the clockwork K is wound up, the dialL revolves in the direction of the arrow a. A pointer K2, fixed on the casing of the clockwork K, indicates the correct hour of the day on t-he graduation L3 of the said dial. Thus, as shown in Fig. l, the hour of the day is one oclock. The pressure of the steam in the vessel A exerts its influence on the piston E, so that the lat- 'ter is moved upward, so that the pointer F2 indicates the pressure in pounds on the graduation G'. At the same time the pencil I marks a line on the dial L, which latter on account of its revolving according to time notes the pressure at the proper time. The dial L is preferably made of slate, so that the markings can be wiped off whenever desired. The spring H insures a return movement of the piston E and connected parts, according to the diminishing pressure of the steam in vessel A.

lVithin the vessel A is also arranged a float N, adapted to rise and fall with the level of the water in the vessel A, the said float being guided on suitable guide-rods N', arranged within the vessel A. The float N is provided with an upwardly-extending rod N2, passing through a suitable stuffing-box in the top of IOO the vessel A, the outer end of the said rod being connected with the end ot' a band or belt O, passing over the rim of a wheel P and fastened thereto, the said wheel being secured on a shaft P, mounted to turn in suitable bearings on the frame A. A spiral spring Q is fastened with one end to the wheel P and with its other end on the frame A', the said spring serving to rotate the wheel P when the Water rises in the vessel A and the iioat N moves upward. The spring Q coils up when the water falls by the weightof the float N, descending with the falling water. On this shaft P is secured, also, a gear-wheel R, meshing into a rack S, supported from a horizontally-arranged slide S, mounted to slide in suitable bearings arranged in the casing U, supported by the casing G, as will be readily understood by reference to Fig. 2. On the front of this slide S is arranged a pointer S2, indicating the height of the water in the boiler on a graduation U, formed on the casing U. On the rear end of the slide S is supported a spring-pressed pencil T, extending through a horizontally arranged slot J2, formed in the cover J. The inner end of the pencil T is adapted to indicate on the dial L and travels in a horizontal line standing at right angles to the pencil I, previously mentioned.

On the shaft K of the clockwork K is hung loosely an indicator V, made in the shape of a sector, corresponding in size to one of the parts L of the dial L. The indicator V is provided with two sets of graduations V and V2, corresponding to the graduations G and U, respectively, of which the former indicates the boiler-pressure and the other the height ot the water-level in feet and subdivisions of feet of the water in the boiler and vessel A. On the peripheral end of the indicator V is arranged graduations V3, indicating the subdivisions of tive-minute spaces of one hour. It is understood that the graduation V on the indicator V indicatesa boilerpressure corresponding to that of graduation G, and is used to read off the boiler-pressure marked by the pencil I on dial L at any of the sector parts L so marked by the said pencil. In a like manner the graduation V2 indicates the height of Water-level in feet and subdivisions of feet corresponding to that of graduation N, and is used to read oft the height of the water-level on any of the sector parts L of dial L in case the latter is already marked by the pencil T. The graduation L2 is used, in connection with the graduation V3 of the indicator V, to read ott the hour of the day during which the pencil T marks the corresponding sector part L and the gradution L3 indicatesin a like manner the hour of the day during which the pencil I made its mark on the corresponding sector part.

As shown in Fig. l, the Roman numerals on the indicator V and denoted by V2 represent the height of the water-level in feet in the boiler, while the Arabic numerals indicate in pressure of the steam in pounds and are denoted by V. (See Fig. l.)

The operation is as follows: When the boiler is in use and the clockwork K is wound up and set going, then the dial L rotates and the piston E and the float N move up and down aecording to the increased or diminished pressure of steam and increased and diminished supply of water in the boiler. The movement of the piston Eis indicated by the pencil I on the dial L, and the movement of the float N is also indicated on the said dial by the pencil T. At the same time the pressure of the steam in the boiler can be read on the graduation G at the pointer F2, and the height of the water in the boiler can be read on the graduation U at the pointer S2. Now when it is desired to read the time of a certain boiler-pressure indicated by the pencil I on the dial L, then the operator shit'ts the indicator V, so that its right-hand edge intersects the desired point of time on the graduated scale L3, and the amount of boiler-pressure can be read on the graduation V as the latter corresponds with the graduation G indicating boiler-pressure, as above explained. At the same time the center radial line of the indicator indicates the hour on the dial L3, and subdivisions of the hour are indicated by the graduation V3. In a like manner the height of the water in the boiler at a certain time can be read by the indicator V on the dial L by shitting the saidindicator so that the left-hand edge intersects the desired point of the line made bythe peneil T, the graduation V2 indicating the height ot the water in feet, and also the graduation V3 indicates the time on the dial L3. Thus it will be seen that no single steam-gage or water-gage is required for the boiler, as the device indicates at sight the steam-pressure and the height of the water in the boiler, and it further furnishes indicator-diagrams of the steam-pressure and the height of the water in the boiler. By this device the owner of a boiler can at any time iind whether proper attendance has been given to the boiler in furnishing the same with the necessary amount of water and whether the attendant keeps the iires under the boiler in proper order to hold a suflicient and constant steam-supply. The pencils I and T are preferably of different colors--say red and blue, respectivelyto readily trace their markings on the slate dial, the red-color line representing the steam and the blue line the water in the boiler.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent l. In a boilerrecorder, the combination, with a tloat controlled by the rising and falling of the water in the boiler,of a pencil controlled by the said i'loat, a dial on which the said pencil is adapted to mark, a clockwork for driving the said dial, and a graduated indicator hung loosely on the said dial and adapted to indi-cate the time for the indicat- IOO IIO

Io cate the time for the indicating-line marked by the said pencil on the said dial, and intermediate mechanism, substantially as described, for connecting the said iioat witlr the said pencil, substantially as shown and described.

VILLIAM MORGAN LEVIS.

Witnesses:

MAX L. SCHAYER, HENRY HARRIS. 

